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Hey Florian.
I’ve been meaning to ask you this question for a long time…
In the attached gamut graph you can see that blue is coming up short by about 3% of the sRGB colorspace… However, in the attached ‘XXXL’ verification report you can see that blue is showing a near perfect delta E.
How can a color show no error if it doesn’t exist?
Just trying to understand what’s actually going here… Does my gamut graph indicate any real concern?
Thanks.
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How can a color show no error if it doesn’t exist?
Gamut coverage percentages are no reliable indication of visual error, delta E on the other hand is.
OK, but the Delta E chart indicates that ‘Blue’ @ 000-000-255 is present, but the gamut graph indicates that that same blue isn’t present.
I am afraid that my maximum blue is being ‘cut off’ and somehow misrepresenting it’s saturation. (Which does appear visually in ‘Color checker’) … But not on your verification report. (See above attached post.)
Why is this?
No, RGB 0 0 255 is the input color (blue), which has the associated nominal CIE values. The mixture of RGB that is needed to get close to those CIE values on the actual display, is something entirely different.
ok, so are you saying in this case that when blue (000 000 255) is being requested by say a photo, that my display is currently reproducing that value accurately to a delta E of 0.09. (According to the attached error report)?
ok, so are you saying in this case that when blue (000 000 255) is being requested by say a photo, that my display is currently reproducing that value accurately to a delta E of 0.09. (According to the attached error report)?
Yes. A delta E of 0.09 is basically imperceptible.
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